Cathodal tDCS on the motor area decreases the tactile threshold of the distal pulp of the hallux

被引:6
|
作者
Yamamoto, Satoshi [1 ]
Ishii, Daisuke [2 ,3 ]
Ichiba, Nao [1 ]
Yozu, Arito [2 ]
Kohno, Yutaka [2 ]
机构
[1] Ibaraki Prefectural Univ Hlth Sci, Sch Healthcare, Dept Phys Therapy, 4669-2 Ami, Ami, Ibaraki 3000394, Japan
[2] Ibaraki Prefectural Univ Hlth Sci, Ctr Med Sci, 4669-2 Ami, Ami, Ibaraki 3000394, Japan
[3] Chiba Univ, Dept Cognit Behav Physiol, Grad Sch Med, 1-8-1 Inohana, Chiba, Chiba 2608670, Japan
关键词
Transcranial direct current stimulation; Tactile threshold; Plantar sensation; DIRECT-CURRENT STIMULATION; NONINVASIVE BRAIN-STIMULATION; CORTICOSPINAL EXCITABILITY; ELECTRIC-FIELDS; A-TDCS; CORTEX; VARIABILITY; MODULATION; REPRESENTATIONS; DISCRIMINATION;
D O I
10.1016/j.neulet.2018.10.032
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Transcranial direct current stimulation (tDCS) has been reported to modulate cortical excitability. Most studies on this topic addressed the modulation effects of tDCS on the upper extremities. Foot-sole tactile sensation is essential to gait, but little is known about the effect of tDCS on sensory function in the foot area. Here we administered tDCS to 10 healthy adults, and we observed that the modulation effects of cathodal tDCS on the left motor area led to a decrease in the tactile threshold of the left center of the distal pulp of the hallux. This effect was not observed in the sham condition. In addition, the subjects' vigilance levels were not changed between before and after the tDCS. These results suggest that sensation on the sole of the left foot could be modulated by cathodal tDCS on the left motor area.
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页数:5
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